Sash-lock.



W. B. WEAVER.

SASH LOGK'. APPLICATION FILED JAN. 18, 1910.

997,76, Patented July 11, 1911.

"or iirnn srinrits Pa an anion WARREN IB. .WEAVEE, LAKELAND, FLORIDA.

seen-Loon.

estate I Specification of Letters Patent.

Patented July 11, 1 .911.

Application filed January 18, .1910. Serial No. 538,590.

means for holding the locking bolt in an unlocked position in order toallow the sash is locked into an inoperative position by siInto movefreely within the frame.

Another object of my invention is to improve the general construction ofthe sash look so as to provide a lock which is exceedingly simple andcheap in construction and one in which'the bolt is so mounted that thesame will be held in its proper position without any danger of the sameworking loose. in any way.

A still furtherzobject of my invention is to provide a -locking boltwith a bifurcated inner end which is pivotally mounted a locking memberwhich is adapted to be swung..-upwardly so as to engage thecasing whenthe same is moved into an unlocked position in order to hold the sameout of engagement with the window frame. I

Still another'object of my invention is to provide a sash lock in whichthe sliding bolt extends inwardly through the side bar of the sash intoa convenient posit-ion for operating the same, the locking'member beingso mounted in the bolt that when the bolt 'ply pressing upwardly on theend of the lockf ng member the bolt will be released so as tb lock thesash.

With these objects in View, my invention g consists in the nevelfeatures of construction -spective view of my improved lock detached.

Fig; 3 is a vertical section through the same.

Fig. 4 is a transverse section.

Referring to the drawing A indicates a window frame and B a sash mountedtherein, the above description being given so ereinafter described,pointed out in the" "claim and shown in the accompanying drawings, inwhich?- that the operation of my improved lock can be readilyunderstood.

In carrying out my improved invention, I employ a casing C which isadapted to be arranged within a recess formed in the edge of the sidebar of the sash B, said recess having a bore communicating therewithwhich extends out through the side bar as clearly shown and adapted toreceive the looking belt of my improved look as will be hereinafterfully described. The casing G is provided with an open side which isclosed by a plate K secured to the casing by screws or the like in.order that the same can be removed to facilitate the insert-ion ofthelocking members which will be hereinafter fully described. A faceplate D is formedintegral with the casing of a greater length than thecasing, the ends of which extend out above and below the same and haveopenings formed therein through which screws are adapted to pass forsecuring the same within the recess ,of the sash,

it of course being understood that the face plate is countersunk in theedge of the sash. The faceplate Dis provided with a square openingthrough which extends a substantially square locking bolt E which ismounted in a .groove F formed in one side of the casing and extends outthrough'the rear end through an opening formed therein whichcommunicates with the bore formed in the sash and said bolt is of such alength that it will exend out beyond the inner edge of the side. bar ofthe casing at such a distance that it can be readily grasped by thefingers so as to operate the same. For normally holding the sliding boltE outwardly so that it will engage the window frame or be forced into arecess formed therein, I provide a spring G which is substantially U-shaped having a coil G which is arranged over a stud pin H extendinginwardly from one ofthe sides of the casing, said spring being providedwith legs of different lengths, the longer leg extending through a slotE formed in the bolt so that the tend ency of the spring is to force thebolt outwardly at all times.

For locking the bolt E against the tension of the spring G so that thesame will be out of engagement with the frame, I bifurcate the inner endof the bolt as clearly shown at I and in said bifurcation I mount apivoted locking member J which is provided with a head J extendingoutwardly beyond the end of the bolt as clearly shown, and by,drawingidown on thehea'd J of the locking member when thebolt is drawninwardly, the notched end oof the locking member will be forcedoutwardly so that when the bolt is'released'it will engage the edge ofthe casing adjacent the opening through which the bolt extends, it ofcourse being understood that the bore in which the bolt slides is ofsuch a sizethat it will allow the locking member to move upwardly. By

notching'the inner end of the locking memher the upward and downwardmovement of the same islimited as the inward movement "of the lockingbolt is limited by the spring insuch a manner that it is impossible todraw. the bolt inwardly beyond the end-of the locking member and by thisarrangement when the locking member is'forced upwardly the reducedportion of the locking member is brought into engagement with the backof the casing so as to limit the upward movement of the same. ll hen itis desired to release the bolt so as to allow I the same to be throwninwardly by the spring in order to lock the sash in the desiredposition, by simply pressing upwardly on the head J the locking member Jwill be thrown out of engagementor down into the bifurcation of the boltso as to allow the spring to force the bolt inwardly.

-From the foregoing description, it will be seen that I have provided asash lock which is provided with a sliding spring actuated bolt havingmeans-for locking the bolt within the casing 'againstthe tension of thespring so as to hold 11165211116 out of engagement with the frame of thewindow in order to allow the sashto move freely up and down within thecasing,- said locking member-being. so mounted within the bolt that inorder to releasefthe same, it is only necessary to press upwardly on thehead of the locking member. V

Having-thus fully described my invention,-what -I claim as new anddesire to secure by Letters Patent,- is:

ortiona U sha Jed s rin ,havirwxa coil 7 b D portion arranged over saidstud pin, and having one of lts ends extending into the bifurcation ofsaid bolt, the walls of said bolt being a ertureduat its end iand alooking member J pivota'lly moun d on a pin arranged in said apertureshaving a head pprtlon and provided with a "notched -end adapted toco-act with the end of said casing. lVARREN-o B, l/VEAVER. 'Witnesses:

J. WEEKD: C. M. CLAYTON.

